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Gravity-based weld travel speed sensing system and method

a technology of sensing system and weld speed, which is applied in the field of sensing system for monitoring the travel speed of a welding torch, can solve the problems of difficult measurement of weld motion during a welding operation

Active Publication Date: 2015-12-10
ILLINOIS TOOL WORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent is about a welding system that has a sensor to detect how the welding torch is positioned relative to the direction of gravity and to determine the angle at which the torch is positioned when welding to a pipe. This information helps the welding system to accurately position the torch and to determine the growth in the angle of the torch during the welding process. This technology improves the accuracy and efficiency of welding and can be retrofitted to existing welding equipment.

Problems solved by technology

Unfortunately, it may be difficult to measure this weld motion during a welding operation due to features of the welding environment, operator considerations, and so forth.

Method used

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  • Gravity-based weld travel speed sensing system and method
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  • Gravity-based weld travel speed sensing system and method

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Embodiment Construction

[0014]As described in detail below, provided herein are systems and methods for determining the travel speed of a welding device during a welding operation. The foregoing systems and methods may be used separately or in combination to obtain information during the welding operation relating to the three dimensional speed of the welding torch along the surface of the metal as the metal is being welded. In some embodiments, these methods may be utilized during unconstrained or manual welding operations to offer advantages over traditional systems in which it may be difficult to measure the weld motion. However, the foregoing systems and methods may also be utilized in a variety of suitable welding systems, such as automated or robotic systems.

[0015]Interpass temperatures are important in the micro-structural properties of weldments, such as yield and tensile strength. One method of estimating and / or limiting interpass temperatures may include estimating travel speed. High interpass te...

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Abstract

A welding system includes an orientation sensing system associated with a welding torch and is configured to sense a welding torch orientation relative to a direction of gravity. The welding system also includes a processing system communicatively couple to the orientation sensing system and configured to determine an angular position of the welding torch relative to a pipe based at least in part on the sense welding torch orientation.

Description

BACKGROUND[0001]The invention relates generally to welding systems, and, more particularly, to sensing systems for monitoring a travel speed of a welding torch during a welding operation.[0002]Welding is a process that has become ubiquitous in various industries for a variety of types of applications. For example, welding is often performed in applications such as shipbuilding, aircraft repair, construction, and so forth. While these welding operations may be automated in certain contexts, there still exists a need for manual welding operations. In some manual welding operations, it may be desirable to monitor weld parameters, such as the travel speed of the welding torch in three-dimensional space, throughout the welding operation. While the travel speed of an automated torch may be robotically controlled, the travel speed of the welding torch in manual operations may depend on the operator's welding technique, the weld pattern and position, the experience of the welding operator, ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B23K9/00B23K9/095
CPCB23K9/0956B23K9/0026B23K9/0286B23K2101/06B23K2101/10
Inventor ALBRECHT, BRUCE PATRICKWATSON, WILLIAM TODD
Owner ILLINOIS TOOL WORKS INC
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